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tipc: eliminate link's reference to owner node

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With the recent commit series, we have established a one-way dependency
between the link aggregation (struct tipc_node) instances and their
pertaining tipc_link instances. This has enabled quite significant code
and structure simplifications.

In this commit, we eliminate the field 'owner', which points to an
instance of struct tipc_node, from struct tipc_link, and replace it with
a pointer to struct net, which is the only external reference now needed
by a link instance.

Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jon Paul Maloy
2015-10-22 08:51:46 -04:00
committed by David S. Miller
parent 7214bcf875
commit c72fa872a2
4 changed files with 29 additions and 22 deletions
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7
net/tipc/node.c
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@@ -178,7 +178,7 @@ struct tipc_node *tipc_node_create(struct net *net, u32 addr, u16 capabilities)
n_ptr->signature = INVALID_NODE_SIG;
n_ptr->active_links[0] = INVALID_BEARER_ID;
n_ptr->active_links[1] = INVALID_BEARER_ID;
if (!tipc_link_bc_create(n_ptr, tipc_own_addr(net), n_ptr->addr,
if (!tipc_link_bc_create(net, tipc_own_addr(net), n_ptr->addr,
U16_MAX, tipc_bc_sndlink(net)->window,
n_ptr->capabilities,
&n_ptr->bc_entry.inputq1,
@@ -366,7 +366,10 @@ static void __tipc_node_link_up(struct tipc_node *n, int bearer_id,
pr_debug("Old link <%s> becomes standby\n", ol->name);
*slot0 = bearer_id;
*slot1 = bearer_id;
tipc_link_set_active(nl, true);
tipc_link_set_active(ol, false);
} else if (nl->priority == ol->priority) {
tipc_link_set_active(nl, true);
*slot0 = bearer_id;
} else {
pr_debug("New link <%s> is standby\n", nl->name);
@@ -599,7 +602,7 @@ void tipc_node_check_dest(struct net *net, u32 onode,
goto exit;
}
if_name = strchr(b->name, ':') + 1;
if (!tipc_link_create(n, if_name, b->identity, b->tolerance,
if (!tipc_link_create(net, if_name, b->identity, b->tolerance,
b->net_plane, b->mtu, b->priority,
b->window, mod(tipc_net(net)->random),
tipc_own_addr(net), onode,